[2.2]Naphthalenophanes from intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes
摘要:
syn-[2.2]Naphthalenophanes were obtained exclusively in reasonable yields from the intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes. The position of the vinyl group and the type of vinyl substituent affected the isomer ratio of the products. The structures of naphthalenophanes were elucidated by H-1-NMR spectroscopy including COSY and NOESY experiments. Among the divinylnaphthalenes examined, 1,4-, 1,5-, and 1,6-ones did not give the desired naphthalenophanes. By taking advantage of the effect of the substituents on the photoreaction, we could obtain [2.2]-(1,5)naphthalenophane derivatives from 1,5-bis(beta-carbethoxyethenyl)naphthalene and 1,5-bis(beta-phenylethenyl)naphthalene, but we could not obtain the 1,4-isomers, probably because they are highly strained. Although a mixture of two different divinylnaphthalenes was irradiated, only homo-adducts were obtained; no cross adducts were detected.
[2.2]Naphthalenophanes from intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes
摘要:
syn-[2.2]Naphthalenophanes were obtained exclusively in reasonable yields from the intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes. The position of the vinyl group and the type of vinyl substituent affected the isomer ratio of the products. The structures of naphthalenophanes were elucidated by H-1-NMR spectroscopy including COSY and NOESY experiments. Among the divinylnaphthalenes examined, 1,4-, 1,5-, and 1,6-ones did not give the desired naphthalenophanes. By taking advantage of the effect of the substituents on the photoreaction, we could obtain [2.2]-(1,5)naphthalenophane derivatives from 1,5-bis(beta-carbethoxyethenyl)naphthalene and 1,5-bis(beta-phenylethenyl)naphthalene, but we could not obtain the 1,4-isomers, probably because they are highly strained. Although a mixture of two different divinylnaphthalenes was irradiated, only homo-adducts were obtained; no cross adducts were detected.
Anil-Synthese. 3. Mitteilung [1] Über die Darstellung von Styryl-Derivaten aus methyl-substituierten carbocyclischen Aromaten
作者:A. E. Siegrist、P. Liechti、H. R. Meyer、K. Weber
DOI:10.1002/hlca.19690520836
日期:——
1,4-Diphenylbutadien-, Tolan-, 1,4-Diphenylbutadiin-, Naphtalin-, Anthracen-und Phenanthren-Reihe werden mit Anilen aromatischer Aldehyde in Dimethylformamid in Gegenwart von Kaliumhydroxid oder Kalium-t-butylat zu Styryl-Derivaten umgesetzt.
甲基取代碳环芳烃,二苯基,三联苯,Stilben-,1,4-二苯基丁二烯-,Tolan-,1,4-二苯基丁二烯-,萘酚-,蒽环与苯并蒽-苯并二氮杂-苯并二氢萘Gegenwart von Kaliumhydroxid oder Kal-叔丁基中的二甲基甲酰胺。
[2.2]Naphthalenophanes from intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes
作者:Motoharu Takeuchi、Takeshi Tuihiji、J. Nishimura
DOI:10.1021/jo00078a016
日期:1993.12
syn-[2.2]Naphthalenophanes were obtained exclusively in reasonable yields from the intermolecular [2 + 2] photocycloadditions of divinylnaphthalenes. The position of the vinyl group and the type of vinyl substituent affected the isomer ratio of the products. The structures of naphthalenophanes were elucidated by H-1-NMR spectroscopy including COSY and NOESY experiments. Among the divinylnaphthalenes examined, 1,4-, 1,5-, and 1,6-ones did not give the desired naphthalenophanes. By taking advantage of the effect of the substituents on the photoreaction, we could obtain [2.2]-(1,5)naphthalenophane derivatives from 1,5-bis(beta-carbethoxyethenyl)naphthalene and 1,5-bis(beta-phenylethenyl)naphthalene, but we could not obtain the 1,4-isomers, probably because they are highly strained. Although a mixture of two different divinylnaphthalenes was irradiated, only homo-adducts were obtained; no cross adducts were detected.